Tennant Company (TNC)
TNC moved a median of -0.06% 30 minutes after news, and -0.29% by the close. How TNC actually reacts to news — the realized, point-in-time move the market made, measured across 369 labeled events over the last three years with zero look-ahead.
TNC’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 39% | 359 |
| 30-min | -0.06% | 46% | 368 |
| 60-min | -0.11% | 45% | 368 |
| to close | -0.29% | 40% | 368 |
| Middle 50% of TNC reactions | -0.73% to +0.49% |
|---|---|
| Median reaction (30-min) | -0.06% |
| Measured reactions | 369 |
Half of all Tennant Company news events land between -0.73% and +0.49% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How TNC reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 14 | +0.12% | 57% | +0.60% |
| Analyst downgrades | 13 | +0.13% | 69% | +0.76% |
| Rating reiterations | 11 | -0.13% | 46% | -0.27% |
Last 3 years, pulled 2026-09-21. Reaction = percent move vs. the price at the news timestamp. Counts and medians only. The same measurement runs across every name in the dataset. 1 further class was observed with fewer than 10 measured events and is not published. See how TNC ranks against every other measured name →
That’s how TNC usually reacts — get an email when it moves on news →Email me when TNC moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to TNC's baseline. Nothing else.
Recent TNC events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 10-Q TENNANT CO For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.26% | +4.90% | |
| Form 8-K TENNANT CO For: Aug 05 | SEC filing · Form 8-K | SEC EDGAR | +2.05% | +2.55% | |
| Tennant Company Reports Second Quarter 2026 Results | Press release | Business Wire | +2.05% | +2.55% | |
| Tennant Company Declares Regular Quarterly Cash Dividend | Press release | Business Wire | -0.73% | -2.06% | |
| Form 8-K TENNANT CO For: Jul 27 | SEC filing · Form 8-K | SEC EDGAR | +0.42% | +0.45% | |
| Tennant Company Announces Retirement of Fay West, Senior Vice President, Chief Financial Officer | Press release | Business Wire | +0.42% | +0.45% | |
| Tennant Company to Report Second Quarter 2026 Results on August 5, 2026 | Press release | Business Wire | -0.10% | +0.66% | |
| Lowey Dannenberg, P.C. is Investigating Tennant Company (NYSE: TNC) for Potential Violations of the Federal Securities Laws | Press release | GlobeNewswire | -0.11% | -0.09% | |
| $TNC Investor Loss Alert: Tennant Investors may have been Misled after ERP System Issues Lead to 23% Stock Drop – Contact BFA Law if You Lost Money | Press release | GlobeNewswire | -0.40% | +0.55% | |
| Lowey Dannenberg, P.C. is Investigating Tennant Company (NYSE: TNC) for Potential Violations of the Federal Securities Laws | Press release | GlobeNewswire | +0.00% | -1.31% | |
| Tennant Company (NYSE: TNC) is being investigated by Lowey Dannenberg over potential violations of Federal Securities Laws | Press release | GlobeNewswire | +0.10% | +0.63% | |
| Tennant Company (NYSE: TNC) is being investigated over potential violations of Federal Securities Laws | Press release | GlobeNewswire | +0.02% | +0.99% | |
| Form 11-K TENNANT CO For: Dec 31 | SEC filing · Form 11-K | SEC EDGAR | +0.00% | +0.74% | |
| Lowey Dannenberg, P.C. is Investigating Tennant (NYSE: TNC) for Potential Violations of the Federal Securities Laws | Press release | GlobeNewswire | +0.20% | +0.47% | |
| Form 8-K TENNANT CO For: Jun 17 | SEC filing · Form 8-K | SEC EDGAR | — | -1.39% | |
| Tennant Company Names Richard H. Zay Chief Operating Officer | Press release | Business Wire | +0.00% | -1.39% | |
| Tennant Investigation: Tennant (TNC) Investigated for Misrepresenting its ERP System Issues – Contact BFA Law if You Suffered Losses | Press release | GlobeNewswire | -0.99% | -0.72% | |
| Form SD TENNANT CO | SEC filing · Form SD | SEC EDGAR | +0.49% | +1.15% | |
| $TNC Shareholder Announcement: Tennant may have Misled Investors about its ERP System Issues – Contact BFA Law about its Pending Investigation | Press release | GlobeNewswire | +0.28% | +2.25% | |
| TNC Inquiry News: Tennant Investors are Notified of BFA Law’s Ongoing Investigation into the Company’s Potential Misstatements – Contact the Firm if You Lost Money | Press release | GlobeNewswire | -0.80% | +1.42% | |
| Tennant Inquiry Alert: Investors with Losses after Company Discloses ERP System Issues are Urged to Contact BFA Law about its Pending Securities Investigation - NYSE:TNC | Press release | GlobeNewswire | +0.54% | +0.51% | |
| Tennant Company Introduces X2 ROVR SCRUB for Autonomous Cleaning in Small, High-Traffic Spaces | Press release | Business Wire | -0.20% | -1.63% | |
| Form 10-Q TENNANT CO For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -0.45% | -1.97% | |
| $TNC Stock Drop Alert: Tennant Company Stock Plummeted 23% on News of ERP System Issues – Investors Notified to Contact BFA Law about its Investigation | Press release | GlobeNewswire | -0.09% | -0.83% | |
| Form 8-K TENNANT CO For: May 04 | SEC filing · Form 8-K | SEC EDGAR | +0.86% | -1.77% | |
| Tennant Company Board Authorizes Repurchase of Additional 2 Million Shares, Bringing Total Repurchase Capacity to Over 2.5 Million Shares | Press release | Business Wire | +0.86% | -1.77% | |
| Tennant Company Reports First Quarter 2026 Results | Press release | Business Wire | +0.86% | -1.77% | |
| Form 8-K TENNANT CO For: Apr 29 | SEC filing · Form 8-K | SEC EDGAR | -0.09% | -0.83% | |
| $TNC Fraud: Tennant Company ERP System Issues Trigger Securities Investigation – Investors Alerted to Contact BFA Law | Press release | GlobeNewswire | +0.00% | -1.34% | |
| Tennant Company Declares Regular Quarterly Cash Dividend | Press release | Business Wire | +0.80% | +2.32% | |
| Tennant Company to Report First Quarter 2026 Results on May 4, 2026 | Press release | Business Wire | -0.04% | -1.02% | |
| $TNC Legal News: Tennant Company Investors may have been Affected by Fraud after ERP System Issues Disclosed – Contact BFA Law if You Lost Money | Press release | GlobeNewswire | +0.56% | -0.22% | |
| Tennant Company and Brain Corp Agree to Accelerate Robotic Cleaning Innovation, Advancing Tennant’s Transformation into a Robotics and Technology Leader | Press release | Business Wire | +0.30% | -0.57% | |
| TNC Investor Announcement: Tennant Company Investigated After ERP System Issues Cause 23% Stock Drop – Investors with Losses Notified to Contact BFA Law | Press release | GlobeNewswire | +1.10% | +0.59% | |
| Tennant Company Unveils X16 SWEEP for Autonomous, Around-the-Clock Industrial Sweeping | Press release | Business Wire | +0.01% | +3.28% | |
| TNC Stock Notification: Tennant Company Stock Dropped 23% Amid ERP System Issues - Investors with Losses Encouraged to Act | Press release | ACCESS Newswire | -0.25% | -3.91% | |
| $TNC Investigation Notice: Tennant Company Investors Who Lost Money may have been Affected by Fraud - Contact BFA Law about its Ongoing Investigation | Press release | ACCESS Newswire | -0.05% | -0.37% | |
| TNC Investigation: Tennant Company Investigated for Misrepresentations about its ERP System – Investors Notified to Contact BFA Law | Press release | GlobeNewswire | -0.44% | -0.03% | |
| $TNC Securities Update: Tennant Company Stock Down 23% following ERP System Issues -- Investors May be Entitled to Recovery | Press release | ACCESS Newswire | -0.54% | -0.56% | |
| Form DEF 14A TENNANT CO For: Apr 29 | SEC filing · Form DEF | SEC EDGAR | +0.33% | +2.48% | |
| Form DEFA14A TENNANT CO | SEC filing · Form DEFA14A | SEC EDGAR | +0.33% | +2.48% | |
| TNC Investigation Alert: BFA Law Investigates Tennant Company After 23% Stock Drop | Press release | Business Wire | +0.23% | -0.99% | |
| Bronstein, Gewirtz & Grossman, LLC Is Investigating Bronstein, Gewirtz & Grossman (TNC) And Encourages Stockholders to Connect | Press release | ACCESS Newswire | -0.25% | +0.22% | |
| Bronstein, Gewirtz & Grossman, LLC Announces an Investigation Against Tennant Company (TNC) and Encourages Shareholders to Learn More About the Investigation | Press release | ACCESS Newswire | -0.36% | -0.05% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages Tennant Company (TNC) Shareholders to Inquire about Securities Investigation | Press release | ACCESS Newswire | +0.42% | -0.94% | |
| Bronstein, Gewirtz & Grossman, LLC Is Investigating Tennant Company (TNC) And Encourages Shareholders to Connect | Press release | ACCESS Newswire | +0.28% | +1.66% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages Tennant Company (TNC) Stockholders to Inquire about Securities Investigation | Press release | ACCESS Newswire | -0.10% | -0.37% | |
| Tennant Company (TNC) Investigation: Bronstein, Gewirtz & Grossman, LLC Encourages Shareholders to Contact the Firm to Learn More About the Investigation | Press release | ACCESS Newswire | -0.08% | +1.86% | |
| Bronstein, Gewirtz & Grossman, LLC Announces an Investigation Against Tennant Company (TNC) and Encourages Stockholders to Learn More About the Investigation | Press release | ACCESS Newswire | -0.41% | -0.23% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages Tennant Company (TNC) Investors to Inquire about Securities Investigation | Press release | ACCESS Newswire | +0.33% | +0.76% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the TNC section they belong to.
Where else TNC is measured.
TNC earnings → · Analyst actions → · SEC filings →
Other Industrials names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Resideo Technologies, Inc. (REZI) | 370 | -0.10% | 43% |
| Crane Holdings, Co. (CR) | 369 | -0.15% | 41% |
| C.H. Robinson Worldwide, Inc. (CHRW) | 368 | -0.08% | 43% |
| W.W. Grainger, Inc. (GWW) | 368 | +0.05% | 56% |
Same sector, same measurement: percent move vs. the price at the news timestamp, read at 30 minutes. Sample sizes differ, so the medians are comparable but the confidence behind them is not.
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Every name we’ve measured, in one place.
How the numbers are made.
How is Tennant Company's median reaction calculated?
Every labeled TNC news event is measured from its own timestamp: the last trade before the news is the base price, and the move is read at fixed horizons — 30 minutes of trading, then the close. The median across 369 events is what this page reports. Point-in-time, zero look-ahead: no event borrows information from a later one.
What counts as a positive reaction?
Any event whose price move is above zero at the horizon, relative to the last trade before the news timestamp. 46% of TNC's measured events are up at 30 minutes; the rest close the window flat or negative.
How often is this page updated?
The news table refreshes automatically as new events are labeled and priced. The reaction medians are re-pulled in batches from the dataset — the figures here are as of 2026-09-21.
Does TNC's past reaction predict its next one?
No. These are realized facts about past events, not forecasts. They describe a distribution — they say nothing certain about any future move.